package com.itheima.d1_inner_class1;

public class Person {
    private int a = 10;

    //内部类
    public class Tui {
        private int a = 20;

        public void put() {
            int a = 30;
            System.out.println(a);//30
            System.out.println(this.a);//20
            System.out.println(Person.this.a);//10
        }
    }
}
